题目内容
During the period they studied in Australia, sometimes they _______________________________________ (提出一些赚钱的点子).
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At the meeting, designers from their company __________________________________________ renderings (阐明了多种评估的方法).
After the energy crisis, they made up their minds to _______________ an oilfield that could _______________ enough oil for people in their own country to consume in the near seabed (勘探；生产).
汽车用蓄电池电压一般是多少伏？
蓄电池按照大的类型上一般有哪几种形式？
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